Temat: treatment wetland - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Operational problems of constructed wetland for landfill leachate treatment: case study
Autorzy:: Obarska-Pempkowiak, H.
Gajewska, M.
Wojciechowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/125011.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: treatment wetland
landfill leachate
clogging
Opis:: The present paper discusses the quality fluctuations of leachate from municipal landfill in Gdansk (Poland) over the last 5 years and the evaluation of a wetland system designed for treatment of the leachate. The research has been conducted during a 5-year period. The constructed wetland for leachate treatment was built in 2001; it consists of 2 horizontal subsurface flow reed beds, working in parallel. In the period 2005–2006 it underwent modernization due to unsatisfactory treatment results caused by bed clogging. After the modernization the treatment effectiveness is satisfactory. The effluent from bed I met Polish outflow standards, while in the effluent from bed II COD, total N and TSS exceeded the required concentrations. In spite of this, pretreatment of leachate (iron removal) should be quickly introduced to protect the system against the reoccurrence of clogging problems.
Źródło:: Journal of Ecological Engineering; 2013, 14, 3; 53-58
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Cod Fractions Changes During Sewage Treatment With Constructed Wetland
Autorzy:: Smyk, J.
Ignatowicz, K.
Powiązania:: https://bibliotekanauki.pl/articles/123349.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: COD
sewage treatment
wetland
Opis:: The purpose of the presented research work was to find out COD fractions in raw wastewater and during treatment with constructed wetland (CW) system. The tests were performed in CW system with average flow of about 4 m³/day. In raw wastewater the highest concentration of fraction in organic suspended solid easy biodegradable (X_S – 250 mg O₂/l) was observed. The same situation was with dissolved organic easy biodegradable matter (SS – 250 mg O₂/l). Lower quantity of non-biodegradable fractions dissolved and in suspended solids were observed (S_I – 27 mg O₂/l, XI – 83.33 mg O₂/l). More than 80% of total COD was as biodegradable fractions (S_S + X). After treatment with CW system the highest concentration was observed for dissolved non biodegradable fraction (SI – 27 mg O₂/l). Lower concentration was for biodegradable fraction in suspended solid (XS – 3.33 mg O₂/l). More than 89% of total COD was in biological non-biodegradable fraction (S_I + X_I).
Źródło:: Journal of Ecological Engineering; 2015, 16, 3; 43-48
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Textile Wastewater Treated by Constructed Wetlands – A Critical Review
Autorzy:: Hussein, Amjad
Powiązania:: https://bibliotekanauki.pl/articles/24201781.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: azo dye
constructed wetland
textile wastewater
treatment
Opis:: Textile industries are among the most environmentally unsustainable businesses, releasing large amounts of effluent that endangers ecosystem health. Constructed wetlands (CWs) are low-cost eco-technical treatments for industrial wastewater control. The CWs are self-contained remediation systems that do not require external energy and have basic mechanisms for pollutant removal, such as biological, chemical, and physical processes. For more than sixty years, constructed wetlands have been utilized to clean wastewater. Most applications have been developed to treat municipal or household wastewater, although CWs are now successfully used to treat a wide range of wastewater types. Constructed wetlands were also employed to treat textile industry effluents in the 1990s. The survey indicated that textile manufacturing wastewaters were treated using subsurface and surface-flow wetlands. Both horizontal and vertical flow systems have been designed within subsurface flow-created wetlands. In addition, many hybrid-built wetlands have recently been documented in the literature for textile industrial wastewater treatment. According to the survey, textile industrial wastewater is treated in constructed wetlands on all continents, and this research includes the data from 65 constructed wetlands in 21 nations worldwide. This paper examined the latest improvements and discoveries in CWs and the many types of CWs used for textile wastewater treatment. The paper also demonstrated state-of-the-art integrated technologies for improving the performance and sustainability of CWs, such as CW-MFC systems.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 256--275
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Kinetics of Pollutants Removal in Wetlands Influenced by Retention Time and Number of Plants Using Cyperus alternifolius
Autorzy:: Rahman, Danar Arifka
Priambodo, Eka Wahyudi
Caturputranto, Trisnadi Widyaleksono
Wahyudianto, Febri Eko
Powiązania:: https://bibliotekanauki.pl/articles/2202280.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: constructed wetland
Cyperus alternifolius
kinetics
wastewater treatment
Opis:: Constructed wetland is considered an alternative for domestic wastewater treatment in cities. This study serves to evaluate the removal capacity and kinetics of TSS, COD, phosphate, and surfactant in domestic wastewater with several plants of Cyperus alternifolius, through the use of the constructed wetlands treatment. The overall objective of the study was to determine the ability of Cyperus alternifolius to remove water pollutants in domestic wastewater in several plants. The domestic wastewater was contacted in a batch system. The results indicated that CWs had a good performance on COD, phosphate, and surfactant with removal efficiencies of more than 80%, with a retention time of 8 days and 5 plants. However, the removal of suspended solids was found limited, as shown that the TSS removal efficiency was under 40%. The first-order equation of kinetics described the degradation of pollutants. The q1/2 values, which were defined as the average removal loading prior to the half of the pollutant concentration being removed and represented the removal capacity without limitation of pollutants concentration, were moderately increased with an addition to the number of plants.
Źródło:: Journal of Ecological Engineering; 2022, 23, 12; 37--43
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Improving Wastewater Reclamation Using Constructed Wetlands by Artificial Plastic Biofilm Carriers
Autorzy:: Zaboon, Baneen Hussein
Al-Abbawy, Dunya A. H.
Yaseen, Dina A.
Powiązania:: https://bibliotekanauki.pl/articles/2202266.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment
free-water surface
Lemna minor
constructed wetland
Opis:: Increasing the demand for potable water, followed by the high quantity of discharged effluents linked with the water scarcity problems has necessitated giving more attention to improving wastewater treatment processes and operations. The constructed wetland has proven to be an excellent green sustainable technique for purification. This study aimed to examine the performance of four experimental free water surface constructed wetlands (FWSCWs) for the depuration of sewage effluents as a secondary treatment stage during winter season conditions. The objectives were to assess the raw and treated wastewater concentrations, evaluate the removal efficiency of chemical oxygen demand (COD), biological oxygen demand (BOD), nutrients, and total suspended solids (TSS) of each treatment line, and compare the impact of plastic rings (biofilm carriers) and Lemna minor L. with the presence of gravel bed on the treatment efficiency and bacterial growth, as well as assess the plant’s adaption and growth. The results showed that all treatment systems improved the water characteristics, and adding biofilm carriers enhanced the efficiency of water purification, especially BOD reduction. The combination of the plants, biofilm carriers, and gravel in the wetland filter significantly enhanced (ρ < 0.05) the treatment efficiency in terms of TSS, COD, BOD, Ammonia (NH3), Nitrates (NO3), and Orthophosphate (PO4) compared to the control treatment system (gravel bed). Plant growth was restricted in the presence of carriers in the system. Further study for examining the system performance under summer conditions, which may improve the nutrient reduction rates by biofilm carriers, is underway.
Źródło:: Journal of Ecological Engineering; 2022, 23, 11; 241--253
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Application of Trickling Filter and Vertical Flow Constructed Wetland Bed to Treat Sewage from Craft Brewery
Autorzy:: Dąbrowski, Wojciech
Karolinczak, Beata
Powiązania:: https://bibliotekanauki.pl/articles/124568.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: craft brewery
sewage treatment
trickling filter
vertical flow constructed wetland
Certyd
Opis:: In Poland, as well as worldwide, an increase in craft beer production can be observed. In the last several years, more than 150 of such breweries have appeared and according to Polish Brewery Association, their number might ultimately reach 500. Many of them emerge in the areas with no access to a central sewerage system so they have to solve the problem of waste management on their own. The article presents the results of research on the possibility of using a hybrid system for biological treatment of sewage from craft breweries. The sewage came from a craft brewery Waszczukowe located in the Podlaskie province. A laboratory scale model consisted of a trickling filter (TF) (research model Gunt CE701e) and vertical flow constructed wetland (SS-VF). Innovative filling (Certyd produced by LSA company) of TF and SS VF was applied. The conducted study included determining the changes in the sewage parameters during hybrid treatment, as well as TF and SS VF efficiency separately. The aim of the research was to show the possibility of treating sewage to a point when it was possible to discharge it to a receiver, in compliance with the Polish legal regulations. The research results might be used in designing a treatment system or sewage pretreatment in craft breweries. The average efficiency of TF operating with 100% recirculation was 76% for BOD₅, 80% for COD, 26% for TN and 34% for TP, while the total treatment efficiency of a hybrid system (TF and SS-VF) was 98%, 98%, 72% and 77%, respectively. The load of TF during operation with recirculation was on average 0.38 kg BOD₅ m^-2d^-1, 0.57 kg COD m^-2 d^-1. The load of SS-VF was on average 0.09 kg BOD₅ m^-2 d^-1 and 0.12 kg COD m^-2d^-1. The obtained results of hybrid treatment permitted to discharge the sewage to the receiver.
Źródło:: Journal of Ecological Engineering; 2019, 20, 9; 211-217
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of COD Fractions in Raw Wastewater Flowing into Small and Large Wastewater Treatment Plants
Autorzy:: Ignatowicz, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/124764.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: COD fractions
treatment plants
rotary biological contactor
constructed wetland
activated sludge
Opis:: The aim of the study was to determine and compare the amount and biodegradability of organic compounds determined by the COD measure contained in raw sewage inflowing to small sewage treatment plants and municipal sewage wastewater treatment plants with high personal equivalent (P.E.). Raw sewage samples were collected in three chosen facilities. The research presented in the article were conducted with two small plants: constructed wetland plant with an average capacity of 4 m³/d and the treatment plant with rotary biological contactor (RBC) with an average capacity of 5 m³/d. Also big municipal wastewater treatment plant (WWTP) with activated sludge in Bialystok with a capacity of about 63 000 m³/d was checked. The lowest percentages of dissolved fraction of soluble organic non-biodegradable substances S_I was founded in raw sewage in small wastewater treatment plants (CW and RBC).
Źródło:: Journal of Ecological Engineering; 2019, 20, 11; 197-201
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Heavy Metals Removal from Simulated Wastewater using Horizontal Subsurface Constructed Wetland
Autorzy:: M-Ridha, Mohanad J.
Zeki, Suhair L.
Mohammed, Sabah J.
Abed, Khalid M.
Hasan, Hassimi Abu
Powiązania:: https://bibliotekanauki.pl/articles/1955516.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heavy metal removal
phytoremediation
horizontal subsurface constructed wetland
Nerium oleander
waste treatment
Opis:: This study aimed to assess the efficiency of Nerium oleander in removing three different metals (Cd, Cu, and Ni) from simulated wastewater using horizontal subsurface flow constructed wetland (HSSF-CW) system. The HSSF-CW pilot scale was operated at two hydraulic retention times (HRTs) of 4 and 7 days, filled with a substrate layer of sand and gravel. The results indicated that the HSSF-CW had high removal efficiency of Cd and Cu. A higher HRT (7 days) resulted in greater removal efficiency reaching up to (99.3% Cd, 99.5% Cu, 86.3% Ni) compared to 4 days. The substrate played a significant role in removal of metals due to adsorption and precipitation. The N. oleander plant also showed a good tolerance to the uptake of Cd, Cu, and Ni ions from water. The highest removal of the heavy metals indicated that the HSSF-CW would be a promising technology for heavy metal contaminated wastewater as well as in electroplating and manufacturing industries.
Źródło:: Journal of Ecological Engineering; 2021, 22, 8; 243-250
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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